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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.myfaces.custom.aliasbean;
20  
21  import org.apache.myfaces.shared_tomahawk.taglib.UIComponentTagBase;
22  import org.apache.commons.logging.Log;
23  import org.apache.commons.logging.LogFactory;
24  
25  import javax.servlet.jsp.JspException;
26  import javax.faces.component.UIComponent;
27  
28  /**
29   * @author Sylvain Vieujot (latest modification by $Author: grantsmith $)
30   * @version $Revision: 472630 $ $Date: 2006-11-08 15:40:03 -0500 (Wed, 08 Nov 2006) $
31   */
32  public class AliasBeansScopeTag extends UIComponentTagBase
33  {
34      private Log log = LogFactory.getLog(AliasBeansScopeTag.class);
35  
36      public String getComponentType()
37      {
38          return AliasBeansScope.COMPONENT_TYPE;
39      }
40  
41      public String getRendererType()
42      {
43          return null;
44      }
45  
46  
47      public int doStartTag() throws JspException
48      {
49          int retVal = super.doStartTag();
50  
51          UIComponent comp = getComponentInstance();
52  
53          if(comp instanceof AliasBeansScope)
54          {
55              ((AliasBeansScope) comp).makeAliases(getFacesContext());
56          }
57          else
58          {
59              log.warn("associated component is no aliasBeansScope");
60          }
61  
62          return retVal;
63      }
64  
65      public int doEndTag() throws JspException
66      {
67          UIComponent comp = getComponentInstance();
68  
69          if(comp instanceof AliasBeansScope)
70          {
71              ((AliasBeansScope) comp).removeAliases(getFacesContext());
72          }
73          else
74          {
75              log.warn("associated component is no aliasBeansScope");
76          }
77  
78          return super.doEndTag();
79      }
80  
81  }